ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,707, issued on Sept. 30.
"Emergency battery backup system for a traffic signal" was invented by Scott Bradley (Orange, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An emergency battery backup system for a traffic signal has a control board operably connected to a battery, wherein the control board includes a DC input terminal that is operably connected to the battery for receiving DC power from the battery, and a DC output terminal that is operably connected to a red light of the traffic signal. The control board further includes AC input terminals for receiving AC power, and AC output terminals that are operably connected to the red light...